Centering means for envelop-blank-cutting dies.



E. W. SAUERMAN.

GENTERING MEANS FOR. ENVELDP BLANK CUTTING DIES.

APPLICATION FILED JAN. 16, 1914.

1'5132,979. Patented Mar.23, 1915.

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F-CHIG GQ, L INOIS, A A Q A QN. 54 9 15 05 GENTERING; E0131 I ENVlEIi0F1BIiAlNK CUT-TING- DIES;

Specification of'LettersPatentr- PatentedMar. 23,1915;

Application filed ian ar e, 191.4. Serial No. 812,561.

To all whomitmay concern:

Be. it known. that. r I,. ,Ennnsr W. ,SA'UER:

LIAN,, a citizen. of the United States, residing,

at Chicago, in the county of Cook and State .of.,Illinois,. haveinvented certain new and useful Improvements in. Centering Means for;Envelop-Blank Cutting Dies,, of which the following is a specification.

The present. invention relates to ameans for. centering and. properly;positioning a ways becut ina manner so thatwhen folded into a completeenvelop; the-Window will .lie in proper position on the facev oftheenvelop.

A further object-of, thelnventlon 1s to providea mounting for thiscentering means so that .it can move in accordance with the movement ofthedie and. position itself so as not to interfere with the forcing ofthe die through the mass, of. paperin the blank forming operation.

The invention further consistsin the features of construction andcombinations of parts. hereinafterdescribed andclaimed.

Inthe drawings; Figure 1 isa vlew, showinga sheet of, paper with. aseries of transparent Windows formed, thereon and the d e of the presentinvention in operative posi tion with respect to one -of -,said"windows;

Fig. 2 is a section on line2 2 of Fig; 1. looking in the direction ofthearrow and showing the die in position prior to the cutting operation;and Fig. 3 is a view similar to Fig. 2 showing the die at-the completionof the cutting operatiom As heretofore stated, the present invention isdirected particularly toward a die which is used for cutting blanks forthe socalled window envelops, which is that class of envelops having aportion ofthe front, face made transparent so that when aninclosure isplaced within the envelop the address upon the inclosure will showthrough the window and thus dispense with the writing of the addressupon the face of the envelop. In manufacturing envelops of thischaracter it is highly important that the blank be cut in a manner sothat When folderally triangular nature.

positionto be exposed through. the .window.

It is, therefore, of material, importanceto properly center the cutting.die with: respect to these Windows.

Referring to the drawings, larly to Fig; 1 in this view; terial isillustrated, having. a seriesof transparent surfaces, 5 which. are of ashape and size to constitute the. Win,-v dows of the envelops. Themostexpediftiousway of manufacturing. these envelops istoform, a Yplurality of transparent sur faces on a: largesheet of paper, thenplace. several sheetsso formed in, a pile, place the die on top of thepile and by onecutting operation cut out a plurality ofenvelop blanks.The transparent surfaces are placedv on these sheets in such. to allowthe diej tobe placed in proper position with. respect to these surfaces.and yet, eliminate, of material. during the cutting operation, thetransparent surfaces being spaced apart and positioned in a manner toallowthedie to be, positioned with respect to the same. so thatpractically all of the st'ock' is utilized for. blanks.

The die itself comprises a body 6 which and partic u a sheet 4 ofmaformed; thereon amanner as consists of a wall 7, a wall 8 and a walll9 and-as shown in the drawin'g is of gen- The walls, of course, beingconfigured so. v blank that is of a form adapted to be,folded into thecomplete envelop. Thedie is of a 7 nature so that it'constitutes a sort,of a frame work and the centering member which forms the subject matterof the present in-; vention lies within this framework'and hence is posti n d i s e o h n ne of, t e d e-,1- This centering member as shownconsists of a horizontally extending fiat plate 10 from whichextends aflat finger .11 at right anglesthereto forming in effect a naturesimilar to a carpenters square. The plate 11 is formed with, or securedto as to create a a square of i the plate 10 by any suitable means andthe plate 10 has attached thereto at its opposite ends stems 12 whichslide within guides 13 and 14 aflixed to plates 15 attached to the innerWall of the die member and springs 16 surround these stems and bear uponthe plate 11 at one end and againstthe guides 14- at the other end.Suitable means are provided to prevent the spring 16 from forcing thestem down to a distance to have it pass out from engagement with theguides, the means shown consisting of a cross pin 17 and a removablelocking member 18 is provided for the plate 15 so as to permit of itsadjustment up and down within the die, if such be desired.

It will be noted that the walls, 8 and 9 of the die are formed withinwardly extending portions 19 which are necessary for proper formationof the envelop blank and advantage is taken of there inwardly extendingportions or ofisets to use them as a further guiding means for thecentering member, the centering member being cut away at its ends toform fingers 21 that ride along the walls of the ofiset portions 19.

In use the edge 22 of the plate 10 is placed along the longitudinal edge23 of the window and the edge 24: of the plate 11 is placed along theend of the window, so that the die is centered oppositely with respectto the window and hence the blank, when out, will have all portionsthereof in proper correlation to the window whereby when the blank isfolded the window will assume the proper position with respect to theface of the envelop. As the die is forced downward through the mass ofsheets A, which is accomplished by any suitable pressure means, notshown, the plates 10 and 11 will remain upon the upper sheet of the pileof sheets. When the die is retracted or pulled out from the work thesprings 16 will act to again send the centering means downward in thedie to the lower edge thereof and in proper position to be placed aboutanother window and center the die with respect to this window.

The device is simple, does not require any change whatsoever in the formof die now used, does not complicate or in any way affect the normalworking of the die, and enables the blanks to be cut accurately with allspeed that could be expected.

I claim:

1. A die for cutting blanks for window envelops comprising a dieportion, centering means within the confines of the die portion forcentering the die with respect to the window of the blank and a mountingfor Copies of this patent may be obtained for said centering meanspermitting it to shift in accordance with the movements of the diethrough the work, substantially as described.

2. A die for cutting blanks for window envelops comprising a dieportion, centering means within the confines of the die portion forcentering the die with respect to the window, a mounting for saidcentering means permitting said means to shift in accordance with themovement of the die through the work and tension means for normallymaintaining the centering means at the bottom of the die, substantiallyas described.

3. A die for cutting blanks for window envelops comprising a dieportion, a centering means within the confines of the die portion, forcentering the die with respect to the window, a mounting for saidcentering means permitting it to shift in accordance with the movementsof the die through the work and means for adjustably holding saidmounting, substantially as described.

4. A die for cutting blanks for window envelops comprising a dieportion, a centering means within the confines of the die portion forcentering the die with respect to the window, a mounting forthecentering means permitting it to slide up and down within the die,substantially as described.

5. A die. for cutting blanks for window envelops comprising a dieportion, a centering means within the confines of the die portion forcentering the die with respect to the window, a mounting for thecentering means permitting it to slide up and down within the die, andtension means for normally maintaining the centering means at the bottomof the die, substantially as described.

6. A die for cutting blanks for window envelops comprising a dieportion, a centering means within the confines of the die portion forcentering the die with respect to the window, a mounting for thecentering means permitting it to slide up and down within the die,tension means for normally maintaining the centering means at the bottomof the die and means for adjustably holding said mounting in variouspositions, substantially as described.

ERNEST W. SAUERMAN.

Witnesses:

WM. P. Bonn, THOMAS A. BANNING, J r.

five cents each, by addressing the Commissioner of latents Washington,D. C.

